William m



UNITED STATES PATENT OFFICE.

WILLIAM M. EOGLES, OF ST. LOUIS,-MI SSOURI, ASSIGNOR OF ONE-HALF TOISAAC N. BYRNS, OF SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 276,527, dated April24, 1883.

Application filed August 11, 1982.

To all whom it may concern Be it known that I, WILLIAM M. EocLEs, acitizen of the United States, and a resident of the city of St. Louis,State of Missouri, have invented a new and useful Improvement inNut-Locks for Fish-Plates; and I do hereby declare the following to be afull and accurate description of the same, reference being bad to theaccompanying drawings and ,letters marked thereon, which make a part ofthis specification.

My invention relates to nutlocks; and it consists of parts andcombination of parts, all as will hereinafter be described.

Referring to the drawings, Figure l repre sents a perspective view of arail having my improved device attached thereto; Fig. 2, a transversesection on line or as, Fig. 1; Fig. 3, a plan view of the lower plateFig. 4, a plan view of the upper plate.

Arepresents the rails, provided with beltholes and bolts to a; B, afish-plate, provided with bolt-ho1es b b for bolts a; O, the lowerlocking-plate, havinglongitudinal openings 0, which embrace nuts 0. a onbolts a a; E, the upper looking or washer plate, having oval openings 6e for bolts a to pass through, and D a pin which passes down between theupper and lower plates, and serves to lock the parts together. Bothplates may be struck from one piece of metal, the surplus from theinterior of the lower plate serving for the upper plate. The lower plateis provided with ele vations c c, the convex faces of which rest uponand elevate the ends above the fish-plate, so that when the former isplaced in position the ends will be above the lower ends of the (Nomodel.)

nuts. The object of this is to prevent the locking-plate working belowthe nuts, and also to hold the plate in such a manner that the walls ofthe slot will bear or impinge near the center of the square portions ofthe nuts. The upper plate, (3, serves as a loop or staple, and isprovided with a depression, 6, the concave surface of which faces thefish-plate, and the body projects outwardly between elevations c c. Theends 0 are beneath nuts a at, and are provided with oval openings 0 0,through which bolts a a pass, and permit of a longitudinal motion of theplate when the pin D is inserted between elevations c a and depressiona.

I am aware that locking-plates have been held in place by means ofstaples and pins; that said plates have been provided with elevationswhich support them above the fishplate, and that washer-plates have beenprojected from the fish-plate, and provided with pins which locktheparts together, and these I do not claim; but

What I do claim is- The combination, substantially as described, ofrails, a fish-plate attached to the rails by bolts and nuts, alocking-plate having elevations at or near its vertical median line, anda longitudinal slot, a washer-plate having a depression which projectsbetween said elevations, and oval slots for the bolts, and a pininserted between the locking and washerplates, for the purpose setforth.

WILLIAM M. EUOLES.

Witnesses R. F. STILLWELL, T. A. MYERS.

